Year	% of total merchandise exports
1960	1.0120433154539015
1961	0.9971509971509971
1962	0.5984223411007344
1963	0.7747214484679665
1964	0.7754943776657619
1965	0.8696262009958622
1966	1.1225506476253735
1967	1.1997913406364111
1968	0.9542451676045999
1969	0.5587238947585659
1970	0.7752341311134235
1971	0.7198394889436557
1972	0.7645010892359061
1973	0.6173371459908339
1974	1.1898859692612793
1975	0.40830660113867323
1976	0.5550520891413027
1977	0.5602715804327498
1978	0.975675795537567
1979	0.9726491627988535
1980	1.3677077478016966
1981	0.8542415171797539
1982	0.7615942921349347
1983	0.8401168983171333
1984	1.1664035420920185
1985	1.154896336557636
1986	1.1055304033088875
1987	1.4069052082875293
1988	1.0593992048175218
1989	1.1226690319968247
1990	1.4805026142039415
1991	2.2568029580326576
1992	2.716423844552988
1993	4.679186118857146
1994	3.3926009204599943
1995	4.190199938423218
1996	4.1335960114586525
1997	4.90210060780297
1998	4.211365088499722
1999	3.5916585647153956
2000	4.890294049160821
2001	4.8360281835804
2002	3.91596762614147
2003	3.869322834526423
2004	5.248812989911894
2005	4.164135222961962
2006	4.330300798347619
2007	4.314532468738638
2008	4.1381762441388314
2009	5.180654706756366
2010	6.353842911983448
2011	5.8796304345043
2012	6.16814296805042
2013	6.3457162267095955
2014	6.088398764663842
2015	6.462273149176921
2016	6.696935853162328
2017	7.3323387698495655
2018	7.204954245219305
2019	6.783700686415249
2020	6.719703004153142